St. Lucia Employer Statutory Forms: What to File & When

Hiring your first employee in St. Lucia turns you into more than a boss — it makes you a collection agent for the state. From the moment someone joins your payroll, the law expects a steady stream of paperwork: registrations, monthly remittances, documents when people leave, and an annual reconciliation at year end. Miss a form or a deadline and you expose the business to penalties, interest, and awkward conversations with the Inland Revenue Department.

This guide maps out the core statutory documents a St. Lucian employer is responsible for, why each one exists, and roughly when it falls due. Think of it as the shape of the compliance calendar — not a substitute for the official rules.

Why these forms exist

St. Lucia operates a "Pay As You Earn" (PAYE) system. Rather than asking employees to save up and settle a tax bill once a year, employers deduct income tax from wages every pay period and pass it to the government on the employee's behalf. Layered on top of that are social-security contributions and a set of lifecycle documents that record when a worker starts, when they leave, and what they earned across the tax year.

One quirk worth remembering: St. Lucia's tax year runs from 1 April to 31 March, not January to December. Your annual paperwork lines up with that April-to-March window.

The core documents

1. Payslips (every pay period)

Every time you pay someone, they're entitled to a record showing gross pay, the deductions taken (income tax and social-security contributions), and net pay. Payslips aren't just a courtesy — they're the paper trail that underpins every other filing. If your payslips are accurate and consistent, your monthly and annual returns practically write themselves. If they're improvised in a spreadsheet, errors compound all year.

2. AU-1 — new hire registration (within 14 days)

When you take on a new employee, they must be registered with the tax authority. The AU-1 is the form for that, and it carries a tight deadline: it's expected to be filed within 14 days of the hire. It's easy to overlook in the rush of onboarding, which is exactly why it's one of the most commonly missed obligations for small employers.

3. PAYE monthly remittance (by the 15th)

Each month you total the income tax you've withheld from staff and remit it to the government, along with the supporting return. The remittance is due by the 15th of the following month — so tax deducted in one month is settled mid-way through the next. This is the heartbeat of employer compliance: it happens twelve times a year, every year, and consistency matters.

4. P45 — when an employee leaves

When employment ends — resignation, dismissal, or end of contract — the departing employee should receive a P45. It records their pay and the tax deducted up to the point they left, so their next employer (or the tax authority) can pick up cleanly. Failing to issue one leaves the former employee unable to reconcile their position and creates loose ends in your own records.

5. TD5 / P11 — the annual return

At the end of the tax year you reconcile everything: what each employee earned, what was withheld, and what was remitted. The TD5 / P11 documents form the annual return that ties your twelve monthly remittances to each individual employee's earnings. It's the moment where sloppy record-keeping through the year finally shows up — or where good records pay off.

A simple mental model of the calendar

• ✦On hire: AU-1 within 14 days.
• ✦Every pay run: payslip to each employee.
• ✦Every month: PAYE remittance by the 15th of the following month.
• ✦When someone leaves: P45.
• ✦Once a year (around the March year-end): TD5 / P11 annual return.

Get those five rhythms right and you've covered the backbone of St. Lucian payroll compliance.

Where employers actually get caught out

The forms themselves aren't complicated. What trips businesses up is the coordination: remembering the 14-day AU-1 window during a busy hiring week, hitting the 15th every single month, and keeping records clean enough that the annual return reconciles without a scramble. As headcount grows, doing this by hand across spreadsheets and calendar reminders becomes fragile.

That's the gap unStatute is built to close. It's software designed natively around the St. Lucia Income Tax Act (Chap. 15.02) — not a repurposed UK or US payroll tool — so it produces every one of these documents from a single source of employee and pay data. Run payroll once and it generates compliant payslips; register a new hire and it prepares the AU-1; close the month and it assembles your PAYE remittance; process a leaver and it issues the P45; reach year-end and the TD5/P11 reconciles from figures you already entered. The paperwork the law requires, filed in minutes rather than late nights.

If you'd rather stop juggling deadlines in your head, start a free 14-day trial at unstatute.com — no card required — and see your statutory forms generated from real payroll data.