Payroll tax US vs Bulgaria: how capped contributions compare with FICA

A Bulgarian employer pays one set of national contributions, worth 18.92% of capped pay for a typical software hire, to one agency. A US employer stacks federal FICA and FUTA, state unemployment tax, workers’ compensation cover and, in most cases, a health plan it chooses and funds. The comparison is therefore less about one headline rate and more about how many separate bills sit behind each paycheck.

In Bulgaria the National Revenue Agency (NRA, НАП) collects every contribution and the withheld income tax. The National Social Security Institute (NSSI, НОИ) then pays the benefits: sickness, maternity, unemployment and pensions. The same contribution rates apply across the country, so a developer in Sofia and one in Varna cost the employer the same at the same gross pay.

US payroll is split between Washington and the states. The federal taxes are uniform, while unemployment rates, disability programs and workers’ compensation pricing vary by state and often by the employer’s own history. A US finance team that already handles payroll in several states will find the Bulgarian structure short by comparison.

This article compares the structures, then prices one Bulgarian salary in full. For the US side we deliberately give no rates: they change by year and by state, and your payroll provider’s figures will be more accurate than anything general.

FICA covers two programs, Social Security and Medicare, and the employer matches what the employee pays. Social Security stops at an annual wage base; Medicare has no cap.

The Bulgarian equivalents are three funds, and the split is not equal. For an employee born after 1959, working under a Labour Code contract in 2026:

• State pension fund: 8.22% on the employer side, 6.58% deducted from the employee.
• Universal pension fund (UPF, УПФ), the second pillar: 2.80% employer, 2.20% employee.
• Health insurance, paid into the National Health Insurance Fund (НЗОК) system: 4.80% employer, 3.20% employee.

Two differences stand out. First, the employer carries the larger share of every Bulgarian fund, where FICA splits evenly. Second, health insurance is part of the statutory bill. The 8% combined health contribution buys cover in the public system, so there is no need to buy a group plan just to give someone access to doctors.

For employees born before 1960 there is no UPF contribution and a higher state pension rate instead, but the employer’s total stays the same.

US unemployment insurance falls almost entirely on the employer. FUTA is a federal tax with a credit for state unemployment taxes paid on time, and each state sets its own unemployment rate, usually adjusted for how many former employees have claimed. Workers’ compensation is normally a separate insurance policy, priced by job class.

Bulgaria handles these risks through three small, fixed lines on the same payslip:

• The unemployment fund takes 0.60% of capped pay from the company and 0.40% from the worker.
• The general sickness and maternity fund takes 2.10% from the company and 1.40% from the worker.
• Work accident and occupational disease: employer only, at a rate of 0.4% to 1.1% depending on economic activity; this example uses 0.4%, an assumption for software work.

None of these depends on your claims record, and none needs a broker. The sickness and maternity line is what funds the NSSI’s sick pay from day 3 of an illness and maternity pay for up to 410 days, which is why a Bulgarian employer’s exposure to long absences is small. The company’s own share of any illness is limited to two working days, paid at 70% of the person’s average gross for a day.

Rates are also stable from year to year. The 2026 budget left private-sector contribution rates unchanged; a proposed 2-point pension increase was dropped before adoption. What moved was the ceiling, which is the figure to watch when you budget for the following year. In the US, by contrast, the Social Security wage base and many state unemployment rates are reset every year, so a multi-year cost model needs more inputs.

Added up, the employer side comes to 18.92% and the employee side to 13.78%, a combined 32.70% of insurable income. That sounds high next to FICA alone. The next section explains why the effective cost is far lower for well-paid staff.

No Bulgarian fund, not even health, takes a share of pay above the monthly maximum insurable income (максимален осигурителен доход). The 2026 social security budget only passed at the end of July, so the year had two caps: €2,111.64 through July, then €2,300 from the first of August. The NSSI publishes the current figure on its guidance page for employers.

The effect is easy to see from the employer’s maximum. At 18.92% of €2,300, the most an employer pays in contributions is €435.16 a month per person, however high the salary goes. The employee’s share tops out at €316.94.

The US contrast is that only the Social Security part of FICA has a wage base, and Medicare keeps running on every dollar. In Bulgaria the cap applies to everything at once. On a €40,000 salary in 2026, contributions without a ceiling would have been €7,568; with it they are approximately €4,972.46, a saving of €2,595.54.

Income tax follows a similar logic of simplicity: a flat 10% on pay after the employee’s own contributions, with no brackets and, for a regular employee, no tax-free amount. The employer withholds it monthly and remits it alongside the contributions, and the deadline for both is the 25th, a month in arrears. Both features get a fuller treatment in why the flat tax in Bulgaria and the ceiling keep costs down.

Our reference hire is a Sofia programmer on €40,000 gross for 2026, and the employer’s bill for that person is approximately €44,972.46. Twelve monthly salaries of €3,333.33 all exceed the cap, which leaves an insurable base for the year of €26,281.48.

• State pension 8.22%: €2,160.34.
• Sickness and maternity 2.10%: €551.91.
• Unemployment 0.60%: €157.69.
• Work accident 0.40%: €105.13.
• UPF 2.80%: €735.88.
• Health 4.80%: €1,261.51.

That adds up to employer contributions of €4,972.46, an on-cost of about 12.4%. Per month the company paid €3,732.86 until the end of July and €3,768.49 after it, the difference being the higher cap. The programmer gives up €3,621.59 in contributions and €3,637.84 in tax over the year and takes home about €32,740.57.

To make a fair comparison, put your own US quote next to it and include every employer line: the FICA match, FUTA, state unemployment, workers’ compensation, the health plan premium and any retirement match. Only then compare the totals. Use the same gross salary on both sides; Bulgarian offers are usually quoted gross per month, so divide a US annual figure by twelve before you start, and remember the euro amount is what the contract will state. For what the Bulgarian figure includes and leaves out, see the true employer cost in Bulgaria.

Hiring via Employer of Record Bulgaria means one more line. At the entry rate our fee totals €7,188 for the year (from €599 per employee per month), lifting the example to about €52,160.

Bulgarian withholding has no elections, no filing status and no state layer. The employer first takes off the worker’s 13.78% share (capped), then 10% income tax on what is left, and pays both to the NRA. A US employee fills in a W-4 and may see federal, state and sometimes local tax on the same stub; a Bulgarian payslip shows one tax line.

The flat rate also makes net pay easy to predict. Our €40,000 programmer received €2,738.11 net in each month up to July, and €2,714.75 in August to November. The higher ceiling from 1 August raised the employee’s contributions, which cut monthly take-home pay by €23.36. That is the kind of mid-year change worth explaining to staff before the first August payslip arrives.

A bonus counts as pay for both tax and contributions. Since the cap works month by month, a bonus landing on top of a salary that is already past €2,300 costs nothing extra in contributions on either side; only the 10% tax bites. In the US, the same bonus would still attract the Medicare portion of FICA.

Year-end work is light. If the company was the person’s sole employer at the close of the year, it settles the annual tax position for them by 31 January, and most such people never file a return. Others file by 30 April. Since twelve withholdings at one rate already add up to the annual liability for a typical employee, refunds and balances due are rare.

For the hiring side of the picture rather than the tax side, read our guide for American companies building a Bulgarian team.

The payroll tax comparison is only part of the budget, and Bulgaria has its own mandatory extras. The most common is the length-of-service supplement (клас прослужено време, “klas”), which adds a minimum 0.6% to basic pay per year of counted experience, and experience with earlier employers counts. A developer with five years behind them gets at least 3% on top of basic pay. Many employers simply build it into the gross figure, as our worked example does.

Other items that a US budget may not anticipate:

• Twenty or more days of paid leave on top of public holidays, and a payout for any days left over when someone leaves.
• Overtime premiums that start at half the normal rate on a weekday and reach double pay on a public holiday.
• Two employer-paid days at the start of every sickness, at 70%.
• Equipment, software and internet costs for people working remotely, which the employer pays.

On the other side, several large US items have no Bulgarian counterpart that the employer funds directly. Health cover comes through contributions. Maternity pay comes from the NSSI, not from the company. No 13th salary is required by statute.

Timing is predictable too. Salaries are paid monthly, and the tax and contribution payments for each payroll fall due on the 25th, a month later. Our EOR timeline for Bulgaria shows how the first payroll runs after a contract is signed, and what an EOR role in Bulgaria covers lists the payments we take off your hands.

Q01Which Bulgarian contributions do the job FICA does in the US?+

A.The closest match is three contributions: state pension (8.22% employer, 6.58% employee), the universal pension fund (2.80% and 2.20%) and health insurance (4.80% and 3.20%), all on pay up to the monthly ceiling in 2026.

Q02Does a Bulgarian employer pay unemployment tax?+

A.Yes, as a fixed 0.60% employer contribution to the unemployment fund, with 0.40% from the employee. The rate does not depend on the employer’s claims history.

Q03What is the most a Bulgarian employer pays in contributions per month?+

A.From 1 August 2026 the ceiling is €2,300 a month, so at 18.92% the employer pays at most €435.16 per employee per month, however high the salary.

Q04Do we need to buy health insurance for a Bulgarian employee?+

A.No. Health insurance is a statutory contribution of 8% of insurable income, with the employer funding 4.80% and the employee 3.20%. Private cover is optional.

Q05Is employer cost in Bulgaria lower than in the US?+

A.For well-paid staff the on-cost is often low because of the ceiling: about 12.4% on a €40,000 salary in 2026. Compare it with your own US quote, including health plan and insurance costs, rather than with a single tax rate.