Dashain bonus and tax: why your Kartik salary slip looks weird

Pull up your Kartik salary slip side by side with Bhadra's. The basic is the same. The allowances are the same. The PF, SSF, and CIT deduction lines are unchanged. The "festival expense" line shows a one-month basic payment that wasn't on any other slip in the year. The TDS line is two or three times its usual size.

The slip looks broken. It is not. It is doing exactly what the Income Tax Act 2058 and the Labour Act 2074 require, in combination, on the single month each year when both kick in. Most people read their first Dashain slip and assume the company has made a calculation error. They have not. The mechanics are just unfamiliar.

This post covers what Section 37 of the Labour Act actually entitles you to, why the entire bonus is taxable (despite a confident HR-blog myth that says otherwise), why the Kartik TDS line spikes, and the two levers you have to soften that spike if you act before Ashad.

What Section 37 actually says

The statutory text of Section 37 of Labour Act 2074 is short:

"Each labour shall be entitled to an amount equal to the basic remuneration of one month as the festival expense each year for the festival to be celebrated according to his or her religion, culture and tradition."

Three details often get lost in translation:

Rule	What it means in practice
One month basic remuneration	Allowances, overtime, transport, and dearness are excluded. Festival expense is calculated on basic alone.
Pro-rata for mid-year joiners	Section 37 explicitly: festival expense = basic × months worked ÷ 12 for employees with less than one year.
Covers all "labour" under the Act	Permanent, temporary, contract, part-time, and probationary workers are all entitled. Only casual workers (under 7 days/month) sit outside.

The festival is the employee's chosen one, by the Act's own wording, so a non-Hindu employee receives the same festival expense for Eid, Christmas, Loshar, or whatever they observe. The amount and timing are fixed; the festival the employee assigns it to is their call (source).

This is the foundation of the Nepali salary slip once a year, and it is the only line item on the slip that does not appear in 11 other months.

The "one month is tax-free" claim is wrong

A common HR-blog assertion in Nepal reads roughly as follows: "Dashain bonus up to one month's basic is tax-exempt; amounts above that are taxable." This shows up on payroll calculator pages, jobs portals, and a handful of tax-advisory sites that copy each other.

The Income Tax Act 2058 does not support this. Section 8 lists what counts as taxable employment income:

"wages, salary, leave, overtime, fee, commission, prize, gift, bonus, and payment for other related employment benefits"

Section 10, the exemption list, enumerates very specific items (government social-security payments to widows, the aged, and people with disabilities; certain foreign-government employment income; and a few others). Festival expense is not among them.

The practitioner consensus is unambiguous. Nepali CA and law-firm sources Imperial Law Associates, Sushil Parajuli, and the Frontline payroll guide all treat the entire festival expense as taxable. The ICAN advanced taxation study material says the same.

No IRD circular exempts the festival expense. If a payroll calculator says one month is tax-free, the calculator is wrong, and the resulting under-withholding of TDS leaves the employee with a year-end shortfall that becomes payable on the personal return.

Why the TDS line on the Kartik slip spikes

The employer's job under Section 87 is to estimate your annual taxable income, compute the annual tax under Schedule 1, and withhold a proportional share each month. The mechanics:

1. Project the year's taxable employment income, including all known allowances and the festival expense.
2. Subtract retirement contributions (SSF or PF + CIT, within deduction caps) and insurance premiums.
3. Apply the FY 2082/83 income tax slabs to the result.
4. Divide annual tax by 12 and withhold that amount each month.

If the projection were perfect from Shrawan onwards, TDS would be flat across all 12 months. In practice, the festival expense is paid in Ashwin or Kartik, not budgeted from Shrawan, and the projection is updated when it lands. The employer recalculates the annual tax with the bonus included, subtracts the TDS already paid in Shrawan, Bhadra, and Ashwin, and recovers the rest over the remaining months. The first recalculation month, usually Kartik, absorbs the bulk of the catch-up.

A second pattern is more aggressive. Some payroll systems treat the bonus as a one-shot payment and add the full incremental annual tax to Kartik's TDS line, not spreading it forward at all. That produces the steepest spike, sometimes 4–5× the normal monthly figure.

PF, SSF, and CIT deductions remain flat across the spike because all three are calculated on basic salary only, not on festival expense (source). The festival expense is excluded from the retirement contribution base. So a Kartik gross that is nearly double the regular gross still produces the same PF/SSF/CIT line as every other month, which is the visual cue that something specifically tax-shaped is happening.

A worked example: Rs 80,000 basic

Take a single employee with Rs 80,000 monthly basic, SSF contributor, no other allowances. Annual basic is Rs 9,60,000. Festival expense in Kartik is Rs 80,000 (one month basic). Total annual employment income with bonus: Rs 10,40,000.

SSF employee contribution at 11% of basic (source) is Rs 1,05,600 a year. This sits comfortably under the one-third / Rs 5 lakh retirement deduction cap (source), so the full amount reduces taxable income. Taxable: Rs 9,34,400.

For an SSF contributor the 1% Social Security Tax band is waived (source). The FY 2082/83 single slabs apply (source):

Slab	Taxable	Rate	Tax
Up to Rs 5,00,000	5,00,000	0% (SSF waiver)	0
Rs 5,00,001 to 7,00,000	2,00,000	10%	20,000
Rs 7,00,001 to 9,34,400	2,34,400	20%	46,880
Annual tax			66,880

Without the Dashain bonus, annual tax would have been computed on Rs 8,54,400 instead, yielding Rs 50,880. The incremental tax on the festival expense is Rs 16,000.

Two slip patterns flow from this:

Smoothed forward (less aggressive). In Shrawan, Bhadra, Ashwin the projection runs without the bonus: monthly TDS = Rs 50,880 ÷ 12 ≈ Rs 4,240. In Kartik the projection updates to include the bonus; the new annual target is Rs 66,880, already-paid TDS is Rs 12,720, so Rs 54,160 needs to come out of the remaining 9 months. Kartik onwards TDS rises to Rs 6,018. The Kartik slip TDS rises about 1.4×.

One-shot (more aggressive). Employer adds the full incremental Rs 16,000 to Kartik's TDS in a single month. Kartik TDS becomes Rs 4,240 + Rs 16,000 = Rs 20,240, roughly 4.8× the regular line. Subsequent months return to Rs 4,240.

Both methods recover the same annual tax. Ask payroll which one your employer uses. If it is the one-shot method and the Kartik slip is uncomfortable, the smoothed-forward method is defensible under Section 87 and a payroll team can usually be persuaded to switch.

The basic, festival expense, and TDS lines move; the SSF, PF, and CIT deductions stay constant because Rs 80,000 of basic is what they calculate against.

The other bonus — Bonus Act 2030 is separate

The annual profit-share bonus under Bonus Act 2030 is a different transaction. Section 5 requires every profit-making enterprise with 10 or more workers to allocate 10% of net income to a bonus pool. Eligibility is tied to working at least half the fiscal year (Section 6). The per-employee cap under Section 7(3) is 8 months' salary for workers earning up to twice the minimum wage and 6 months' for those earning above that. Payment is due within 8 months of fiscal year end, extendable by 3 months on Labour Office approval.

Where the Dashain festival expense is mandatory regardless of profit, the Bonus Act bonus is contingent on profit. A loss-making year produces zero. Banks, hydropower companies, and large insurers are the most common employers where the profit-share bonus regularly maxes out at the 6-month cap, while many smaller service-sector firms pay zero. Both flavours of bonus are taxable employment income; both flow through TDS via the same annualised projection.

What to do if your employer skips it

Section 37 is not waivable. The path if the festival expense is short-paid or missed:

1. Document the slip and the shortfall. A formal email to HR/finance is the easiest first record.
2. File a complaint at the local Labour Office, which initiates negotiation between employer and employee.
3. Appeal a Labour Office decision to the Labour Court within 35 days of receipt (source).

Real cases sit at every stage of this ladder. The Annapurna Post mass resignation in 2021 cited unpaid one-month Dashain bonus, half-salaries, and unpaid PF among the grievances (Setopati source). CG Brewery employees physically confronted management in October 2023 over withheld Dashain bonuses (Nepal Khabar source). The Federation of Nepali Journalists in 2020 publicly demanded back-pay including Dashain allowance from media houses that had skipped it (Himalayan Times source).

These are the public ones. The Labour Office sees a much larger volume of complaints that never reach the press, particularly in tourism, garments, and small-firm service sectors.

Levers to soften the Kartik spike before Ashad

Two legitimate moves reduce the year's annual tax and therefore the size of the Kartik spike:

Top up CIT. Voluntary CIT contributions reduce assessable income, subject to the combined retirement-contribution cap of one-third of assessable income or Rs 5,00,000 (SSF members) or Rs 3,00,000 (non-SSF). If you have spare cashflow after Kartik, increasing the CIT contribution for the remaining months of the fiscal year shrinks the year's taxable income and the year's tax. See the framing in CIT vs PF vs SSF. The reduction kicks in only if payroll recomputes the projection after the top-up.

Use the insurance deductions. Up to Rs 40,000 of life insurance premium and Rs 20,000 of health insurance premium are deductible from assessable income for FY 2082/83 (source). If you carry term life and don't already claim the full Rs 40,000, this is the easiest one-line addition to the next year's projection.

What does not work: asking the employer to split the bonus across multiple months. Annual income decides the slab, so smoothing the payment timing changes when TDS comes out, not how much. Sinking funds and CIT top-ups are real levers. Bonus timing is not.

A separate piece of advice that has nothing to do with tax: do not let the bonus become a sunk cost. The Dashain sinking-fund post covers the alternative budgeting approach.

What you actually need to know

• The Dashain bonus is one month of basic remuneration, mandatory under Labour Act 2074 Section 37, paid pro-rata for mid-year joiners, and owed by every employer in the formal sector. Allowances, overtime, and dearness are excluded from the base. The entitlement is not waivable.
• The entire bonus is taxable employment income. The "one-month tax-free" claim is unsupported by Income Tax Act 2058. Treat any payroll calculator that says otherwise as misinformed, and treat the resulting under-withholding as a year-end liability for you, not your employer.
• The Kartik slip looks weird because the bonus inflates the annualised TDS projection while PF/SSF/CIT stay flat. Two legitimate levers reduce the year's tax bill: topping up CIT before Ashad and claiming the full Rs 40,000 life insurance / Rs 20,000 health insurance deductions. Splitting the bonus across months does not save tax.

If your Kartik slip looks off this year and you want a sanity check on the TDS math, email parjanya57@gmail.com with the basic, the festival expense line, the SSF/CIT figures, and the TDS line for two consecutive months.

This post is part of the Nepal Money Basics guide — the salary and payroll section.