Why one calendar beats four separate agendas
In a Swiss SME, compliance deadlines do not come from a single set of rules: the Code of Obligations (CO) requires year-end closings and general meetings, the Federal Tax Administration (FTA) sets VAT reporting periods, OASI funds and occupational pension (BVG/LPP) schemes require periodic declarations and payments, while lease agreements, insurance policies and software licences expire independently of the tax year. When each area lives in a separate Excel sheet, an accountant’s reminder or the trustee’s inbox, dates overlap and exceptions — early closing, opting out of audit, switching to the effective VAT method — stay invisible to the operations team.
An integrated compliance calendar is not a simple chronological list: it translates legal, contractual and insurance obligations into operational dates, aligned with your financial year and canton of registered office. The goal is to reduce the risk of fines, late payment interest and documentation gaps, but also to free capacity for commercial activity, because every deadline brings accounting preparation (accruals, VAT documentation, payroll) that is best planned in advance.
This guide shows how to map the four columns — CO, VAT, social security and contracts — into one annual plan, suitable for GmbHs, AGs and sole proprietorships with employees, with reference to current Swiss practice and the role of centralised accounting software such as Accountex to keep dates, documents and responsibilities together.
The four columns of the compliance plan
Before fixing dates in the calendar, classify each obligation into one of these areas. The same week may contain deadlines in several columns: integration means seeing them together.
Code of Obligations and accounting
Proper books under Art. 957 et seq. CO, year-end closing, balance sheet and income statement, management report where required, convening the shareholders’ or members’ meeting, filing and approval of accounts, ordinary audit or documented opting-out, retention of commercial books, accounting records, management report and audit report (ten years from the end of the financial year, Art. 958f CO). For companies limited by shares, also remember updating the register of signatories and notifications to the Commercial Register in case of statutory changes.
VAT and direct taxes (operations)
Frequency of VAT returns (monthly, quarterly, half-yearly or annual on request, depending on method and turnover), filing and payment within 60 days of the end of the reporting period, any refund claims, wage withholding tax (where applicable) and withholding on third-party services, cantonal deadlines for corporate income and profit tax (usually separate from federal VAT). Also mark internal dates in the calendar to close collection of invoices and credit notes before each VAT reporting period.
Social security and insurance
OASI/AI/EO instalment contributions (monthly or quarterly for employers, based on payroll mass), annual salary declaration, BVG contributions and any supplementary pension funds, mandatory accident insurance (LAINF), sickness allowance (at least the legal minimum), annual review of insured BVG salaries and notification of new hires or leavers. For businesses with cross-border workers or special agreements, note the specific deadlines agreed with the compensation funds.
Contracts and operational renewals
Premises and equipment leases, maintenance and leasing, professional and cyber liability policies, software maintenance contracts, licences, agreements with critical suppliers, domain and certificate renewals, expiry of bank guarantees or surety bonds. Many of these dates are not public-law obligations, but they affect operational continuity and often require budget and internal approvals before automatic renewal.
Typical deadlines to synchronise (year ending 31 December)
Actual dates vary by canton, VAT method and company statutes. The table below illustrates a reference model for a GmbH or AG with a 31.12 year-end and quarterly VAT reporting; adapt each item to your profile and always check official communications from the FTA and your canton.
| Period | CO / corporate | VAT / tax | Social security | Contracts (examples) |
|---|---|---|---|---|
| January | Start document collection for closing; inventory check | Q4 accounting close; Q4 return (Oct.–Dec.) normally due for filing and payment by end of February (60 days from 31.12.) | OASI/AI/EO Q4 instalments (by 10 January); annual salary declaration by 30 January; salary certificates by 31 January | Annual insurance renewals; lease notice periods per contract and CO (e.g. 3 months residential, 6 months commercial premises) |
| February–March | Draft financial statements; management report; meeting convening | Q4 return deadline; prepare data for current period | Regular payments; contribution reconciliation after salary declaration | Review software and hosting contracts |
| April–June | General meeting and approval of accounts within 6 months of closing (typically by 30 June) | Q1 and Q2 VAT deadlines; provisions for profit tax | Quarterly or monthly OASI instalments; annual BVG review | End of lease trial periods; mid-year leasing renewals |
| July–September | Filing of approved accounts; Commercial Register publication if required | Q2/Q3 VAT; estimate cantonal tax instalments | Summer hiring notifications; salary adequacy checks | Notice periods for contracts with autumn tacit renewal |
| October–December | Planning for next financial year; statutory review if needed | Q3/Q4 VAT; verify data for any VAT correction return | Final OASI instalments of the year; budget contributions for new year | Year-end policy and licence renewals; physical inventory |
Also add internal dates to the calendar (a buffer of seven to fourteen days before each legal deadline) so the trustee or administrative lead can complete checks and signatures.
Building the annual plan in five steps
Set the accounting anchor
Start from the financial year-end date (31.12 or other) and the fact that the management report and approval of accounts must meet CO deadlines (generally within six months of closing, Art. 958 para. 3 CO). All other columns align to this anchor: the last VAT return of the year, the annual OASI salary declaration and the contract inventory expiring within the year must be consistent with the balance sheet.
Export official deadlines
For VAT, record reporting period and filing method in the FTA portal (mandatory from 1 January 2025). For social security funds, keep letters with payment due dates. For the canton, note the deadline for filing corporate income or profit tax. Avoid copying generic dates from the internet without cross-checking them against your personalised notifications.
Inventory contracts with automatic renewal
Extract leases, policies, SaaS and framework agreements from digital or paper archives. For each, note expiry date, minimum notice period, amount and internal owner. Tacit renewals falling in January often fall to the same person who closes the accounts: in an integrated calendar this conflict becomes visible and plannable.
Define responsibilities and documentary evidence
Assign each calendar item an owner (business owner, HR, in-house accounting, trustee) and the expected output: declaration filed, meeting minutes, renewed policy, reconciled bank statement. Evidence feeds the audit file and simplifies any tax review or BVG audit.
Review the plan quarterly
An integrated calendar is not static: VAT method changes, material hires, relocation or new financing shift deadlines. Plan a check at quarter-end to update dates, delegations and accounting preparation checklists linked to each obligation.
Governance: who does what without grey areas
Compliance often fails not through ignorance of the law, but because nobody knows who must act by Friday. A clear model for SMEs with partly outsourced accounting:
| Activity | Company / management | Accounting / Accountex | Trustee / auditor |
|---|---|---|---|
| Invoice and VAT receipt collection | Operations, expense approval | Recording, period reconciliation | Sample check if engaged |
| VAT return and payment | Mandate signature, liquidity | Data preparation from accounting records | Filing and optional advisory |
| Payroll and OASI/BVG | Attendance data, hires | Processing and cost recording | Fund declarations if delegated |
| CO closing and general meeting | Resolutions, dividend strategy | Management accounts, reports | Official financial statements, convening, audit |
| Contract renewals | Negotiation, budget | Accruals and cost allocation | Only if covered by mandate |
Document delegations in the accounting mandate and internal HR rules. The integrated calendar must reflect these splits so reminders reach the right person and accounting data is already available when the tax or social security deadline hits.
From Excel sheet to linked accounting workflow
Swiss accounting software such as Accountex does not replace the legal calendar, but makes it executable: VAT periods close on numbers already recorded, personnel costs automatically feed bases for OASI and BVG, documents attached to entries become evidence for CO closing. The ideal integration includes shared reminders (export to company calendar), labels by type of obligation and pre-deadline checklists linked to the accounting month.
Configure internal alerts when a VAT period has unreconciled entries or when supporting documents are missing for material purchases: fixing before the FTA deadline avoids stressful corrections and late payment interest. For the general meeting, generate from accounting a statement of financial position and monthly trends in line with applicable Swiss GAAP/FER for your company category, so convening is not delayed by incomplete data.
Minimum monthly checklist (integrated accounting)
- Bank and corporate card reconciliation closed by the fifth working day of the following month
- Review prior-period VAT postings and correct tax code errors
- Check contract deadlines in the next 90 days and accrue rent or leasing
- Align hours/projects with payroll if you have variable work
- Digital archiving of minutes, renewed policies and social fund payment receipts
Common mistakes and how to avoid them
Treating VAT as the only tax deadline
Many SMEs monitor only the FTA and forget cantonal instalments, withholding tax or audit opt-out deadlines. The integrated plan must include all authorities and statutory terms, not just the VAT quarter.
Ignoring contractual notice periods
A landlord or SaaS vendor can tacitly renew an expensive contract while the team is busy with the accounts. Mark notice periods required by contract or law (not below CO minimums) in the calendar with enough lead time and link them to treasury budget.
General meeting after the CO deadline
Delaying approval of accounts beyond legal deadlines exposes directors to liability and complicates bank financing. Bring closing work and meeting convening forward so approved accounts meet the six-month deadline from year-end.
Calendar not shared with the trustee
If the accountant discovers in March an unplanned BVG deadline in January, the damage is done. Share one version of the plan and update it after every material corporate decision.
An integrated compliance calendar turns scattered obligations into a readable annual path: fewer surprises, better liquidity (planned advance payments), a coherent documentation file for banks and investors. Start from the accounting anchor, align VAT, social security and contracts, assign clear responsibilities and use digital accounting as the operational engine — so every Swiss deadline becomes a managed step, not an emergency.