01Live rates · Trinidad NIS calculator

The Trinidad NIS calculator. Live rates, instant math.

The Trinidad NIS calculator runs National Insurance System (NIS), PAYE, and Health Surcharge deductions on any gross pay. Live rates from the Board of Inland Revenue (BIR) and the National Insurance Board of Trinidad and Tobago (NIBTT), with the weekly earnings class table applied automatically. Enter gross pay and pay frequency to see employer and employee NIS contributions, PAYE withholding, and the TT$8.25 weekly Health Surcharge in seconds.

NIS, Health Surcharge, PAYE · C110 monthly flagNIS, Health Surcharge, PAYE · C110 monthly

The Trinidad NIS calculator. Live rates, instant math.

Payroll Calculator
Inputs

Enter gross pay

Enter the employee's gross pay for one pay period.

Other frequencies are converted automatically.

Contributions

Per pay period

Employee NIS
5.4% of insurable pay TTD 0.00
Employer NIS
10.8% of insurable pay TTD 0.00
Health Surcharge
Tiered weekly amount, employee only TTD 0.00
Employee PAYE
25% / 30% on chargeable income TTD 0.00
Total employer cost
Gross plus employer NIS TTD 0.00
Net pay after employee deductions TTD 0.00

AThe short answer

The Trinidad NIS calculator runs National Insurance System (NIS), PAYE, and Health Surcharge deductions on any gross pay. Live rates from the Board of Inland Revenue (BIR) and the National Insurance Board of Trinidad and Tobago (NIBTT), with the weekly earnings class table applied automatically. Enter gross pay and pay frequency to see employer and employee NIS contributions, PAYE withholding, and the TT$8.25 weekly Health Surcharge in seconds.

Live rates · Maintained by the Workzoom payroll team

Trinidad NIS calculator: Trinidad and Tobago statutory rates for 2026.

Effective 5 January 2026 (NIBTT). NIS combined rate increased to 16.2%. Health Surcharge and PAYE rates published by the Board of Inland Revenue.

5.4%
Employee NIS
Legislated employee share of the 16.2% combined rate. Effective 5 January 2026.
10.8%
Employer NIS
Legislated employer share of the 16.2% combined rate. Effective 5 January 2026.
TTD 13,600
Monthly ceiling
Highest earnings class XVI: TTD 3,138 weekly / TTD 13,600 monthly.

Filing calendar · Marked against the actual deadlines

When NIS is due.

C110
Monthly NIS schedule
Due by the 15th of the following month

The C110 is NIBTT's monthly contribution schedule. Workzoom generates the C110 directly from payroll with each insured employee mapped to the correct NIBTT earnings class.

TD4
Annual PAYE return
Due by 28 February

The TD4 is the BIR's annual employee return reconciling PAYE deductions for the prior calendar year. Workzoom builds the TD4 from the same payroll engine that produced each monthly PAYE schedule.

Workzoom Payroll · Trinidad and Tobago

Built to handle the Trinidad C110.

Workzoom Payroll for Trinidad and Tobago is built to handle every statutory deduction in one engine: NIS at 10.8% employer and 5.4% employee (combined 16.2%, effective 5 January 2026) on NIBTT's 16 earnings classes capped at TTD 13,600 monthly, Health Surcharge at the BIR's tiered weekly amount, and PAYE at 25% / 30% on chargeable income above the TTD 90,000 personal allowance. The C110 and TD4 come from the same engine, so filings match the register by construction. T&T payroll is rolling out through our launch partner program.

  • Current 16.2% NIS rate and TTD 13,600 monthly ceiling, built to handle
  • Health Surcharge tiered weekly amount per employee, built to handle
  • PAYE 25% / 30% brackets above the TTD 90,000 personal allowance
  • C110 monthly schedule generated directly from payroll for the 15th-of-the-month deadline
  • TD4 annual return produced at year-end from the same data
See Trinidad Payroll Book a Walkthrough
Trinidad and Tobago payroll automation in Workzoom, trinidad nis calculator in Workzoom

What employers actually ask about Trinidad and Tobago NIS.

The most common questions Trinidad and Tobago employers ask about NIS, filing, and payroll integration.

The Trinidad NIS calculator runs National Insurance System (NIS), PAYE, and Health Surcharge deductions on any gross pay. Live rates from the Board of Inland Revenue (BIR) and the National Insurance Board of Trinidad and Tobago (NIBTT), with the weekly earnings class table applied automatically. Enter gross pay and pay frequency to see employer and employee NIS contributions, PAYE withholding, and the TT$8.25 weekly Health Surcharge in seconds.
Workzoom applies the current Trinidad and Tobago NIS rate of 5.4% for the employee and 10.8% for the employer on insurable earnings up to NIBTT's highest class (TTD 3,138 per week / TTD 13,600 per month). The combined NIS contribution is 16.2% of insurable pay, effective 5 January 2026, up from 12.6% under the previous schedule.
Workzoom tracks NIBTT's 16 earnings classes per employee. The highest class XVI applies above TTD 3,138 weekly / TTD 13,600 monthly. Once insurable earnings hit class XVI, NIS does not increase further while PAYE and Health Surcharge continue without that cap.
Health Surcharge is an employee-only flat weekly deduction, not a percent of pay. It is TTD 8.25 per week for employees earning more than TTD 469.99 per month and TTD 4.80 per week for employees earning TTD 469.99 per month or less. Health Surcharge is remitted with PAYE on the monthly schedule to the Board of Inland Revenue. Workzoom is built to handle it as part of the T&T configuration.
Workzoom generates the C110 contribution schedule so it is ready before the 15th of the following month, the NIBTT deadline. Late C110s draw TTD 40 per week overdue, plus a 25% surcharge and 15% per year interest on unremitted contributions under the National Insurance Act.
Workzoom applies the current PAYE rates of 25% on chargeable income up to TTD 1,000,000 and 30% on chargeable income above TTD 1,000,000. Chargeable income is gross income less the TTD 90,000 personal allowance and any approved deductions. PAYE is remitted monthly to the Board of Inland Revenue.
Workzoom produces both. The C110 is the monthly NIS contribution schedule filed with NIBTT for one pay period. The TD4 is the BIR annual employee return reconciling PAYE for the prior year and is due by 28 February. Both are built from the same payroll engine so the year and the months agree.
With Workzoom, every employer operating in Trinidad and Tobago must register with NIBTT and contribute NIS for each insured employee earning above the lowest earnings class. Self-employed individuals contribute at a combined rate covering both employer and employee portions, and directors receiving salaried pay are treated as insured employees.
Workzoom charges $4 per employee per month per suite. The full platform of HR, Workforce, Payroll, and Talent runs $16 per employee per month. There are no setup fees, no annual contracts, and Trinidad and Tobago statutory deductions are included in payroll without per-line surcharges.

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Run Trinidad payroll properly.

NIS is one of three statutory lines on every Trinidad pay run. Workzoom handles all three plus the TD4 automatically. Pricing is $4 per employee per month per suite, included.

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