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Tax assessment

Calculates the month's taxes (DAS/DARF/ISS/INSS/FGTS) on revenue and payroll, with calculation memory and a due-date calendar.

🕒 Updated on Aug 31, 2026📖 ~2 min read👍 2 people found this article helpful

What you find on this screen

A portrait of the screen, read from the screen itself — it changes when the screen changes.

Available actions

Assess (official)PreviewRefresh

The list shows

TaxAmountDue dateStatusTrail / slip

Form fields

CompetênciaMês e ano de apuração que define quais impostos e bases entram no cálculo da tela.
TributoNome do imposto apurado no mês, por exemplo Simples, ISS, INSS ou IRRF.
RegimeRegime tributário usado como base do cálculo daquele tributo.
ValorValor calculado do tributo na competência, ainda sujeito a validação do contador.
VencimentoData limite de pagamento da obrigação; fica em destaque quando já está vencida.
StatusSituação da obrigação no fluxo de apuração, validação e pagamento.
Valor no calendárioValor apurado de cada tributo nos últimos meses, mostrado no calendário de obrigações.

Start here

How to calculate
Choose the accrual period and click Calculate. Each tax becomes a line with a value, due date and the calculation trail (step by step). Use "Preview" if the month hasn't closed yet (the base can still change).

Rules

By regime
Simples: DAS (with Fator R deciding Anexo III/V) + FGTS. Presumido: IRPJ + surtax + CSLL + PIS + COFINS + ISS + INSS (GPS) + FGTS. Lucro Real: detailed calculation (PIS/COFINS credits) is left for a later phase — here only the payroll comes out.
Bases and Fator R
The month's revenue and RBT12 (previous 12 months) come from your entries; payroll (12m and monthly) comes from the payroll. The Fator R (payroll ÷ revenue ≥ 28%) decides the Simples Anexo. Configure the regime in Settings → Tax regime.
Consumes the closed month
The official calculation uses the CLOSED month (Financial → Closing), when the base no longer changes. The preview is used to estimate before closing.
Check before paying
The values are calculated by Tenka and are NOT yet officially validated. The official payment slip (barcode/PIX) comes from the tax provider or the agency's portal. The accountant validates each obligation in the Accountant Portal before payment.

Frequently asked questions

Due dates and alerts
The due dates are approximate (day X of the following month) and adjustable — confirm the calendar for your municipality/regime. Obligations due or overdue generate an alert in the bell icon (daily scan).
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