Requirements · POS systems
Requirements a restaurant POS must meet for tax, receipts and compliance
Last updated 25 October 2026 · 2 sources listed · Reading time about 3 minutes
Short answer
A POS must calculate the correct tax on each item, keep audit-friendly records, produce compliant receipts, protect card and staff data and support the record retention your authorities require. Some countries mandate certified fiscal devices. Rules differ by jurisdiction, so check with your tax authority and an adviser, then verify the vendor supports your local requirements.
Who this is for: A restaurant or retail owner who needs the POS to satisfy sales tax, record-keeping and data security obligations in their jurisdiction.
What to evaluate
Tax configuration
Mixed rates for dine-in, takeaway, alcohol or exempt goods cause errors if the system is rigid.
How to check: Set up your real tax categories and run test sales for each.
Fiscal or certified device rules
Some jurisdictions require approved fiscal printers or certified software.
How to check: Ask your tax authority whether certification applies and ask the vendor for proof.
Receipt content
Receipts may need specific information such as tax identification, itemization and date formats.
How to check: Compare a sample receipt with local requirements.
Record retention and audit trail
Voids, discounts and edits must be traceable and records kept for the required period.
How to check: Test that edits are logged and that reports can be reproduced later.
Card data handling
Payment functions fall under card network security requirements.
How to check: Ask whether the payment terminal is separate or integrated and how data is protected.
Staff and customer data protection
Employee records and loyalty data fall under privacy laws in many places.
How to check: Review access controls, consent features and deletion capability.
Cash handling controls
Weak cash controls lead to shrinkage and disputes.
How to check: Test cash drawer reconciliation, blind counts and manager override rules.
Comparison
| Area | What the POS should do | What to verify |
|---|---|---|
| Sales tax | Apply the correct rate by item and order type | Run test transactions against your rules |
| Fiscal reporting | Meet local certification or reporting duties | Obtain written confirmation from vendor and authority |
| Receipts | Print or send compliant receipts | Check mandatory fields |
| Audit trail | Log voids, refunds and discounts | Review a sample log |
| Data protection | Restrict access and secure data | Check roles and retention settings |
Decision worksheet
Rate up to three options against this guide’s own criteria. It runs in your browser and saves only on this device. It is a thinking aid, not a recommendation.
1. Have you checked each criterion?
0 of 7 criteria checked.
2. Compare options (0 = fails or unknown, 3 = meets it well)
| Criterion | |||
|---|---|---|---|
| Tax configuration | |||
| Fiscal or certified device rules | |||
| Receipt content | |||
| Record retention and audit trail | |||
| Card data handling | |||
| Staff and customer data protection | |||
| Cash handling controls | |||
| Total (max 21) | 0 | 0 | 0 |
Questions to ask before you commit
- Is your software approved or certified in my jurisdiction, and can you show evidence?
- How do I handle mixed tax rates for dine-in and takeaway?
- How long are transaction records kept and can I export them?
- Can voids and discounts require manager approval?
- How are receipts generated and what fields can be customized?
- Who is responsible when tax rules change?
- What data about employees and customers does the system keep?
- How does the system support an audit or inspection?
Typical trade-offs
Certified fiscal hardware
- Upside
- Meets legal requirements in jurisdictions that demand it.
- Downside
- Less flexibility and higher setup effort.
Strict approval controls
- Upside
- Reduces fraud and theft.
- Downside
- Slows service when managers are busy.
Collecting customer data for loyalty
- Upside
- Improves marketing and repeat business.
- Downside
- Raises privacy obligations and breach exposure.
Common mistakes
- Assuming default tax settings match your local rules.
- Not checking whether a fiscal device is mandatory before buying.
- Letting every staff member perform voids without oversight.
- Keeping data indefinitely without a retention policy.
- Failing to update tax settings when authorities change rules.
Related questions
Do I need a certified fiscal printer?
It depends entirely on where you operate. Some countries require approved fiscal devices or software for retail and hospitality, and penalties for non-compliance can be serious. Others have no such rule. Ask your national or regional tax authority, and ask the POS vendor to confirm in writing that their product is accepted locally. Do not rely on marketing claims alone.
How should a POS handle takeaway versus dine-in tax?
Where rules treat them differently, the system should apply rates by order type or item category and show the result on the receipt. Test every combination, including mixed orders, discounts and service charges. Mistakes often appear in edge cases such as combo meals or drinks. Have your accountant review the configuration before launch.
How long must I keep transaction records?
Retention periods are set by tax and commercial law and vary by country and sometimes by type of record. Your accountant or tax authority can state the requirement. The POS should let you keep and export records for that period without relying on a live subscription. Plan a periodic archive stored independently.
What audit trail features matter most?
Logs showing who voided or discounted a sale, when, and with whose approval; records of price changes; and the ability to reproduce historical reports unchanged. Auditors and owners both rely on these to detect errors and fraud. Test by performing a void and then locating it in the logs.
Are loyalty programs a privacy concern?
They can be. Collecting names, contact details and purchase history engages data protection law in many places, including consent, access and deletion rights. Check that the POS lets you record consent, limit who can see customer data and remove records on request. Keep only what you need.
Sources and further reading
These pages were reachable when we last checked. They informed definitions and rules referred to above; they do not endorse this guide. Where rules differ by country, check the authority for your location.
- Small Business and Self-Employed — US Internal Revenue Service, retrieved 27 October 2026
- PCI Security Standards Council — PCI Security Standards Council, retrieved 27 October 2026
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