JornadaFirma

1. One-liner

Generates the signed working-day agreement every Mexican employer owes each worker before the 46-hour law bites.

2. Trend signal — why now?

On 1 May 2026 Mexico published in the DOF a reform to the Ley Federal del Trabajo cutting the maximum workweek from 48 hours to 40, phased: 48 in 2026, 46 from 1 January 2027, 44 in 2028, 42 in 2029, 40 in 2030. It amended LFT articles 58, 59, 61, 66, 68, 71, 132 (XXXIV) and 994 (IV Bis).

Two duties land at once on 1 January 2027:

1. The electronic register. Employers must electronically record the start and end time of every worker’s shift, retain it, and produce it on demand. Fines of 250–5,000 UMA — and the reporting is per worker.
2. The paperwork nobody is selling. The workweek “may be distributed by mutual agreement between employer and worker.” That agreement has to exist on paper. Collective agreements exceeding the new maximum become automatically non-compliant on 1 January 2027. Employers must audit every individual and collective contract, redesign schedules per position, execute a convenio modificatorio signed by both parties, deposit an updated Reglamento Interior de Trabajo, and update IMSS/INFONAVIT schedules.

Here is the part that turns this from advice into a product. Mexican labour counsel report that the working-time register constitutes prueba plena — full proof — only where a documented accord on the schedule and its distribution can be demonstrated. Without the signed agreement, the employer has data and no evidentiary weight. Undocumented contractual terms render the register legally ineffective; inconsistent documentation across work centres compounds liability.

So a PyME can buy a 50-MXN-per-user time clock, clock everybody faithfully, and still lose the hearing.

Meanwhile the time-clock vendors — Worky, Buk, FiscoClic, Rankmi — have all pivoted their marketing to the reform. Every one of them sells recording. Worky’s own reform page handles recording hours, not redesigning schedules, and generates no contract amendments or convenios. The register is a solved, commoditised, price-collapsing product. The instrument that makes the register admissible is unbuilt.

And this repeats. Each phased reduction — 2027, 2028, 2029, 2030 — needs its own agreement. Four re-papering events per worker, legislated in advance.

Provenance:

• Signal 1 (demand): DOF-published LFT reform — 46-hour week and mandatory electronic register from 1 Jan 2027, fines 250–5,000 UMA per worker; employers must audit individual and collective contracts and formalise distribution agreements — https://www.gtlaw.com/en/insights/2026/5/reforma-a-la-ley-federal-del-trabajo---reduccion — observed 2026-08-30
• Signal 2 (feasibility/gap): Register is “prueba plena” only with a documented schedule accord; undocumented contractual terms render registers legally ineffective — https://lexlatin.com/reportajes/registro-electronico-jornada-mexico-obligaciones-sanciones-riesgos-legales — observed 2026-08-30
• Signal 3 (economic): 1,015,100 IMSS-registered patrones as of July 2026; labour lawyers charge $2,000–$5,000 MXN to draft a simple contract or legal document, $15,000–$250,000 for integral contract work — https://www.expreso.com.mx/noticias/negocios/imss-reporta-caida-de-patrones-registrados-2026/ and https://metalegal.mx/blog/cuanto-cobra-un-abogado-laboral-en-mexico/ — observed 2026-08-30
• Signal 4 (incumbent check): Worky’s reform product records attendance and does not generate contracts, convenios modificatorios, or schedule redesign — https://www.worky.mx/software-de-reloj-checador — observed 2026-08-30 Category: Regulatory arbitrage

3. The opportunity

Every vendor in this market is selling the number. Nobody is selling the document that makes the number count.

The reform created two obligations and the market noticed one. Time-clock software is a fifteen-year-old category in Mexico with entrenched players and prices already down to ~50 MXN per user per month. Competing there is suicide. But the clock is the easy half — a solved engineering problem being sold at commodity prices.

The hard half is legal paperwork at per-employee granularity: for each worker, a schedule that fits 46 hours inside the daily caps (8 day / 7 night / 7.5 mixed, never more than 12 combined), overtime distributed no more than 4 hours a day across no more than 4 days a week, salary and benefits provably untouched — because any reduction is null and void even with the worker’s consent — and a signed convenio memorialising it.

Today a PyME has exactly two options. Pay a despacho laboral $2,000–$5,000 MXN per document, which for 40 workers is $80,000–$200,000 MXN and simply doesn’t happen. Or download a free template from a payroll blog, fill in the same schedule for all 40 people, and discover in a hearing that the template contradicts the punch data.

That second failure mode is the wedge. A generic template cannot know that María works a mixed shift and Jorge a night shift, that the store opens Sundays, or that the current punch record already shows 51 hours. A tool sitting on top of the payroll roster and the existing attendance export can.

The incumbents structurally will not follow. Worky and Buk sell to HR on an attendance-and-payroll value proposition; producing signed legal instruments per employee means owning legal-content risk, which is precisely what a payroll SaaS vendor’s counsel tells it not to do. That’s a durable reason for the gap, not a temporary one.

4. Target market

Primary customer: The owner or single administrative lead of a Mexican PyME with 5–150 IMSS-registered workers — restaurants, retail chains with 2–8 branches, small manufacturing shops, logistics operators, clinics, hotels — in Nuevo León, Jalisco, CDMX, Querétaro, Estado de México, Puebla. No in-house counsel. Typically an external contador who handles IMSS and payroll but is not a labour lawyer and does not want to sign off on contract language.

Why they buy: Because the fine is denominated per worker and they can count their workers. A 40-person business facing 250–5,000 UMA per worker is not doing a philosophical risk assessment. And because their contador has already told them, correctly, that this is outside his scope.

Rough TAM reasoning: 1,015,100 registered patrones with the IMSS as of July 2026. The overwhelming majority are micro-employers; assume conservatively that ~180,000 have 5+ workers, an owner who can be reached digitally, and a real exposure. Capturing 1,500 of those is a $1M+ ARR business. This is not a market that needs to be created — the deadline creates it on a fixed date.

Why now for them: 1 January 2027 is four months out. Legal guidance is explicit that firms which react late face sanctions, and that implementation should have begun mid-2026. Q4 2026 is precisely when this moves from “next year’s problem” to “my contador just emailed me.”

5. Product sketch (MVP)

• Import the worker roster from a payroll CSV or IMSS listing — name, position, shift type, current contracted hours, work centre
• Flag every worker whose current contract or actual punch record breaches the 46-hour cap taking effect 1 January 2027, ranked by exposure
• Propose a compliant schedule per position — respecting 8/7/7.5-hour daily caps, the 12-hour combined ceiling, and two rest days — with the alternatives an owner can actually choose between
• Generate the per-employee convenio modificatorio in Spanish, populated with that worker’s real position, shift, work centre and new distribution, with the salary-and-benefits-unchanged language the reform requires
• Produce the matching updated Reglamento Interior de Trabajo draft and a checklist of where it must be deposited
• Collect worker signatures — in person on a tablet or by remote link — and keep a dated, per-worker signed archive
• A “reform readiness” one-pager the owner can hand to an inspector or a lawyer, showing which workers are papered and which are not
• Re-run for the 2028, 2029 and 2030 reductions against the archive from the previous round

6. AI angle — what’s load-bearing

Remove the AI and this collapses into a template pack, which is the thing that already exists and already fails.

The work is reading messy real-world inputs and producing a legally coherent per-worker instrument. Payroll exports arrive with shift types encoded as free text in inconsistent Spanish, positions named idiosyncratically, and work centres implied by a branch code. The model reads that, classifies each worker’s shift into the diurna / nocturna / mixta categories the LFT actually distinguishes, detects which contracts breach the new cap, and drafts the convenio in Mexican legal Spanish with that worker’s specific facts.

The schedule redesign is the genuinely hard part: fitting 46 hours across five days inside multiple interacting caps, for a business that has to stay open the same hours, then explaining the trade-off to a non-lawyer owner in plain language. That is reasoning over constraints plus generation, not a form.

It is also why this is defensible against a template: the template can’t read your roster.

7. Localization angle

This is the localization play — it is not a global product with Spanish bolted on.

• Language: Mexican legal Spanish. The convenio has to read the way a CFCRL conciliator expects. Peninsular Spanish or translated English is immediately wrong.
• Legal specificity: LFT articles 58/59/61/66/68/71/132/994, UMA-denominated fines, IMSS/INFONAVIT schedule updates, RIT deposit, CFCRL ratification. None of this transfers anywhere.
• Pricing: A per-employee price of 40–90 MXN lands naturally against a $2,000–5,000 MXN lawyer document. A US-priced product cannot exist here.
• Payment rails: SPEI and domestic card via Mexican PSPs; many PyMEs will want a factura, so CFDI invoicing is table stakes.
• Distribution: WhatsApp is the working channel for owner and contador alike. Contadores and despachos laborales are the channel, not a growth loop.

One caution worth stating plainly: the phased-reduction structure is a Mexican artefact. This does not port to Colombia or Chile without a rewrite, and I would not underwrite the idea on regional expansion.

8. Business model — path to $1M–$5M ARR

• Pricing: Per-worker papering event, with an annual plan. $690 MXN/month ($37 USD) for up to 25 workers, $1,490 MXN/month ($80 USD) up to 75, $2,900 MXN/month (~$155 USD) up to 150. Plus a one-time $2,900 MXN onboarding for the initial audit and first full papering round — priced deliberately below a single lawyer document for a whole roster.
• ACV: $14,000 MXN ($750 USD) blended, counting the onboarding fee in year one.
• Rough math to $1M ARR: 1,400 customers at ~$13,400 MXN/yr ≈ $18.8M MXN ≈ $1.0M USD. Out of ~180,000 addressable employers, that’s under 1% penetration.
• Rough math to $5M ARR: ~6,000 customers, or the same 1,400 plus the despacho channel reselling under their own brand at a higher seat count. Realistically $5M needs the accountant-channel motion to work — a firm with 60 PyME clients is worth 60 direct sales.
• Expansion path: Headcount growth moves customers up tiers. The 2028/2029/2030 reductions are three more legislated papering events, each of which re-monetises the same account without new sales effort. Adjacent instruments — RIT deposits, NOM-035 documentation, contract updates on promotion or transfer — are natural add-ons once the signed archive exists.

Honest note on the weak spot: this has a real churn risk after the January 2027 crunch. A customer who has papered everyone may see no reason to keep paying until 2028. The archive, the signature trail, and the ongoing new-hire flow are what convert this from a one-off to a subscription, and that conversion is assumption #1 below.

9. Go-to-market wedge — first 100 customers

• Contadores are the channel, and they’re motivated. External accountants are being asked this question right now by every client and it sits outside their competence. Recruit 25 despachos contables in Monterrey, Guadalajara and CDMX with a 25% recurring referral fee and a co-branded readiness report. One despacho with 40 PyME clients that converts 15% delivers 6 customers. 25 despachos × 6 = 150. This is the single highest-yield motion and where I would spend month one.
• The Q4 deadline seminar. Run a weekly one-hour Spanish webinar — “Tu reloj checador no te salva: lo que falta para el 1 de enero” — promoted through CANACO and COPARMEX chapters and contador Facebook groups. The hook is the prueba plena gap, which is genuinely news to the audience. Every attendee uploads a roster and gets a free exposure count; that count is the sales pitch.
• Sell against the incumbents’ own customers. Worky, Buk, Rankmi and FiscoClic are running heavy reform content marketing and doing the audience-building for us. Their customers are pre-qualified: they’ve already accepted the reform is real and paid for the clock. Target their user communities and comparison-shopping traffic with one message — the register is half the obligation.
• Free exposure audit as the lead magnet. Upload a roster, get a per-worker list of who breaches 46 hours on 1 January and what the UMA exposure is. Deliberately free and deliberately not the product: the count is worthless without the signed convenios. This is the diagnostic-as-magnet pattern used in the right direction — give away the number, charge for the instrument.
• Direct outbound to multi-branch operators. Restaurant groups, pharmacy chains and hotels with 3–10 locations have the worst problem: staggered shifts, multiple work centres, and inconsistent documentation across sites is explicitly called out as compounding liability. Scrape DENUE for these, send a Loom in Spanish showing their own sector’s schedule redesign.

10. Build complexity — justification

Low. Document generation from structured inputs, a constraint solver for schedules that is honestly a few hundred lines of rules, e-signature via an off-the-shelf Mexican provider, CSV import, and an archive. No integrations are strictly required for v1 — CSV in, PDF out, signatures collected. A pair ships this in 8–10 weeks.

The real cost is not engineering, it’s legal. The convenio templates and the schedule-redesign rules must be reviewed and signed off by a Mexican labour lawyer, and that relationship needs to be retained, not one-off. Budget $80,000–150,000 MXN for template development and review. That’s the moat and the expense in the same line item.

11. Gating checklist

Gate	Pass?	Note
Legal in target market	✅	Document preparation software. Must be positioned as a tool, not as legal representation — a retained labour lawyer reviews the templates.
Ethical — no harm / dark patterns	✅	Helps employers comply with a worker-protective reform and creates a signed record workers also hold. Salary-reduction attempts are null by law and the product must refuse to facilitate them.
Market exists (evidence above)	✅	1,015,100 registered patrones, a dated statutory duty, and an established $2,000–5,000 MXN per-document lawyer price.
1–5 person team can build this	✅	Two builders plus a retained labour lawyer.
Launchable with <$50K / ₹40L	✅	~$12–15K USD, dominated by legal template work.

12. Feasibility score

Axis	Weight	Score	Notes
Problem intensity	20	16/20	Per-worker fines of 250–5,000 UMA and a hard 1 January 2027 date. Not a 19: the punishment arrives via inspection or a worker’s lawsuit, not automatically on the date, so a fraction of employers will rationally gamble.
Demand evidence	15	12/15	Statute, penalty schedule, an established lawyer price point, and four competitors already spending on reform marketing. Held back because I could not source direct verbatim owner complaints — the Mexican PyME conversation happens in WhatsApp groups and at CANACO meetings, not on indexable forums. That’s a real gap in this research, not a formality.
Build feasibility	15	13/15	Documents, rules, signatures. The constraint is legal review, not code.
Distribution clarity	15	12/15	The contador channel is specific, motivated and countable, and the incumbents are pre-warming the market. Not higher because despacho partnerships take weeks each to activate and the conversion rate is assumed.
Revenue mechanics	15	11/15	Pricing anchors cleanly below the lawyer alternative and the math to $1M needs under 1% penetration. Docked for genuine post-crunch churn risk.
Time to first revenue	10	8/10	The deadline sells it; pre-sales are plausible before the product is finished. Days-to-cash is short, but the despacho channel needs a few weeks to warm.
Defensibility	10	5/10	Legally-reviewed templates plus the signed archive plus the contador relationships. A competent competitor replicates the core in a quarter. The four legislated re-papering events through 2030 are what make the account sticky, not the technology.
Total	100	77/100

13. Qualitative modifiers

Founder-fit tags

sales-heavy · domain-expertise-required

This needs someone who can sit in a Monterrey despacho contable and close a referral partnership in Spanish. A remote foreign builder should not attempt this alone; the legal-content risk and the channel are both local.

Key assumptions to validate (3–5)

1. Assumption: PyMEs will pay a recurring fee rather than treating this as a one-time January 2027 purchase. How to test: Offer 20 prospects a choice between a one-time $4,900 MXN papering package and a $690/mo plan; measure the split. If more than 70% take the one-time option, reprice as a service with an archive retainer rather than a SaaS.
2. Assumption: Contadores will refer rather than build it themselves or send clients to a lawyer. How to test: Pitch 15 despachos in one week; count how many sign a referral agreement and pass a first client within 30 days.
3. Assumption: Owners believe the register alone is insufficient. How to test: Show 30 owners their punch data alongside the prueba plena requirement; measure how many ask what the convenio costs unprompted. This is the whole thesis — if they shrug, the idea is dead.
4. Assumption: A generated convenio is accepted in practice — by workers signing it and by authorities if reviewed. How to test: Have the retained labour lawyer stress-test three generated documents against real rosters, and confirm CFCRL ratification practice for schedule modifications in two states.

Risk flags

1. Regulatory risk: The phased schedule could be amended, delayed, or clarified by STPS guidance that changes what documentation is required. Mexican implementation dates have moved before. Conversely, official STPS-published model templates would gut the product overnight — that is the single most dangerous event and it is entirely plausible.
2. Incumbent expansion: Worky or Buk bolts on a document generator. They have the roster data already, which is most of the input. Their disincentive is legal-content risk, but that’s a judgment call they could reverse in a quarter.
3. Unauthorized-practice exposure: Selling generated legal instruments requires careful positioning and a real lawyer in the loop. Get this wrong and it’s not a business problem, it’s a licensing one.
4. Deadline-shaped demand: Sales will spike in Q4 2026 and fall off a cliff in February 2027. The 2028 reduction is 11 months later. Cash management and the churn answer both matter more here than in a typical SaaS.

14. Structured verdict

Score:                  77/100
Verdict:                GO
Confidence:             Medium
Best-fit builder:       Mexico-based operator with despacho contable relationships,
                        paired with a retained labour lawyer. Spanish-native, sales-led.
Time to revenue:        6–10 weeks (pre-sell against the 1 Jan 2027 deadline)
Capital to launch:      $12–15K USD / ~$250K MXN — majority is legal template work
Top 3 assumptions to validate first:
  1. Recurring vs one-time willingness to pay — 20-prospect pricing A/B
  2. Contador referral channel converts — 15 despacho pitches in one week
  3. Owners accept that the time clock alone leaves them exposed — 30 owner conversations
Kill criteria:
  - Abandon if fewer than 4 of 15 despachos sign a referral agreement in 30 days
  - Abandon if STPS or CFCRL publishes official model convenio templates for the reform
  - Abandon if fewer than 8 of 30 owners, shown the prueba plena gap, ask about price
  - Abandon if >70% of buyers refuse a recurring plan and the one-time ACV falls below $4,000 MXN

15. Next step — 1-week validation sprint

• Day 1–2: Retain a Mexican labour lawyer for a paid half-day. Confirm exactly what a valid convenio modificatorio for a schedule change must contain, whether CFCRL ratification is required or merely advisable, and whether generated documents create any unauthorized-practice exposure. Walk away now if the answer is that each convenio needs individual lawyer review to be valid — that would break the unit economics outright.
• Day 3–4: Pitch 15 despachos contables in Monterrey and Guadalajara. Not a survey — an actual referral agreement with a 25% recurring fee. Count signatures.
• Day 5: Run the readiness webinar to a CANACO chapter list. Offer the free per-worker exposure audit; count rosters uploaded and, of those, how many ask the price of the convenios unprompted.

Falsifiable go/no-go: ≥4 signed despacho referral agreements AND ≥8 of 30 owners asking about convenio pricing unprompted. Below either threshold, the market is buying the clock and nothing else, and this is a feature rather than a company.