Growing Mandats portfolios, seasonal work peaks, and a high volume of documents lead many practice teams to a concrete question: which ongoing booking tasks can be reliably outsourced to a background partner?
A viable answer emerges from Engagement itself. The status of data, Kontierung fundamentals, processing schedule, responsibilities and audit trails determine what scope can be directly integrated and where preparation is needed first.
The article classifies suitable accounting tasks, matching Mandat types, and three service models. At the same time, it remains clear which professional decisions and approvals are managed by the practice team.
Tax advisor Above all, ongoing, recurring and clearly described booking work can be outsourced externally to a back-office partner. Depending on the Engagement, this includes accounts receivable and Accounts payable, bank postings, payment allocations, the maintenance of open items and preparatory reconciliations.
The tasks become particularly compatible as soon as Chart of accounts, booking logic and review criteria are documented. A clearly defined Account coding thereby creates the connection between document, business transaction and designated account. The background partner works within these guidelines and documents issues that require a professional decision by the firm.
Direct answerSteuerberatung teams may outsource clearly defined financial accounting tasks (Mandat) provided that the scope of work, data status, Kontierung principles, audit trail and format of return are established in advance. Mandat management, technical decisions and approvals remain the responsibility of the law firm.
Debtors and creditorsThe task package may include posting invoices in accordance with the agreed booking and Kontierungs rules and preparing them for technical review.
Bank and payment allocationBank transactions are matched to the corresponding business transactions and invoices. Open queries are assigned a clear status.
open itemsThe ongoing maintenance of open items (AR/AP) makes receivables, payables and unresolved payments visible during the monthly cycle.
Preparatory account reconciliations can also be part of the task package. The expert assessment of a special case, the selection of a differing accounting or tax logic, and the final approval remain the responsibility of the designated persons at the firm.
The suitability of an accounting mandate depends primarily on its current workload. A small Engagement with changing document paths and many open allocations can trigger a higher effort for preparation and reconciliation than a larger Engagement with stable data flows and documented booking rules.
Digitally managed Mandate with up-to-date master data, a fixed Chart of accounts, regular document delivery, and a clear monthly rhythm are often directly connectable. Here, the background partner can continue the agreed scope of work at a traceable stage of progress.
| Mandat situation | Suitability | Required preparation | Appropriate scope |
|---|---|---|---|
| Digitally managed, standardised and up to date | Ready for immediate connection | Confirm handover status and responsibilities | Single module or defined package |
| Inconsistent data and open votes | Ready for connection after preparation | Organise voucher routes, legacy data and booking instructions | Initially a limited task package |
| Many unresolved edge cases | To be assessed on a case-by-case basis | Conduct technical and organisational preliminary review | Determine scope after the clarification phase |
A Engagement that needs preparation can also be suitable. In that case, the launch takes place after an orderly clarification phase. Open clearing accounts, differing booking habits, missing master data and unexplained legacy inventory are first given a documented status.
This gives the legal practice team a realistic decision to make. They can identify which Mandate can be moved directly to background processing and which Mandate require technical or organisational clarification first.
The Mandats management remains with the firm. The scope of the service follows the booking and Kontierungs principles, the decisions on special cases, as well as the planned audit steps and approvals.
The primary client relationship also remains anchored within the firm team. Queries from the background partner are channeled through the agreed contact persons. The firm then decides which information can be answered from existing documents and which points need to be clarified with the client.
Technical decisions and Tax advisory servicesKontierung basics, evaluation questions, special cases and year-end procedures are categorised by the relevant experts.
Inspection and ReleaseThe law firm defines focus areas for review, checks the returned work status and grants professional approval.
Client managementTax returns, advice and client communication remain anchored in the firm's structure.
Annual financial statements and final worksYear-end decisions, rebookings involving professional assessment and further advisory services are managed by the practice team.
This division of tasks categorises the processing of Finanzbuchhaltungsmandates in the background. The specific external, communication and white-label model is described in the White-label accounting for accountancy practices deepened.
A secure handover begins with a clear key date. The last audited processing status is recorded, after which current master data, Chart of accounts, document status and open items are organized together.
For ongoing Mandats, the back-office partner also needs the documented booking and account assignment principles. Recurring business transactions, fixed offsetting accounts, cost centres, special authorisations and known reconciliation fields should be brought together in a compact working basis.
handover statusA robust handover status specifies the last audited month, open accounts, unresolved vouchers, outstanding client information, fixed booking rules and the next return date.
Up-to-date company, customer, supplier and bank master data create the basis for processing. In addition, a clear Chart of accounts and documented rules of Bookkeeping are required for regularly recurring booking cases.
Document submission follows a fixed channel and rhythm. Bank details, invoices and supplementary evidence are assigned to the respective processing period. Open items are given a clear reference so that the firm can make targeted decisions or query the client.
Dedicated contact persons are designated for technical queries, missing documents and urgent clarifications. Equally important are the scheduled review times and the format for returning results. This ensures that the monthly payroll run remains transparent for both parties. The technical connection can concern DATEV, ADDISON or another practice management system and is determined for the specific task package.
The agreed service and its scope should match the specific situation of the firm. Starting with a defined task module allows for controlled testing. A broader package is recommended as soon as data channels, booking bases and review procedures already interact stably.
For example, the firm transfers bank entries, Accounts payable or AR/AP accounting. This model is suitable for clearly localised bottlenecks and creates a manageable starting point.
Several related working areas are grouped together. For example, a combination of Accounts payable, bank transactions, payment allocation and preparatory Account reconciliation is conceivable.
The back-office partner takes on a clearly defined ongoing Mandat volume up to the agreed return status. The law firm subsequently takes over review, technical categorisation and approval.
appropriate starting scopeA good starter package has a clear beginning, a definite processing result and defined checkpoints. This allows the allocation of tasks to be evaluated using real monthly runs.
The scope can be flexibly developed based on the experience gained from the monthly runs. Prerequisites for this are stable results, transparent queries, and reliable adherence to the agreed handover and return times.
A practical monthly closing separates ongoing posting, technical clarification and approval. The back-office partner performs the agreed tasks and collects queries with document reference, accounting period and specific decision point.
The firm answers technical questions or obtains supplementary information from the client. These clarifications are then incorporated into the current status of the work. This ensures that decisions remain transparent and subsequent audits can refer to the documented reasoning.
Status of processingCompleted tasks, outstanding receipts and uncleared accounts are documented periodically.
List of queriesEach question contains the facts, the reference, the required decision and the responsible contact person.
Evaluation and return of the monthly readingThe practice team receives the coordinated status of work with open points, review notes and scheduled sign-offs.
The exact communication channel depends on the agreed model. With discrete background processing, queries can go entirely through the law firm. Other models involve authorised client contacts for clearly defined data queries. The roles and public perception are determined before the start.
Access rights are based on the required scope of duties. The specific data protection role, contract structure and technical connection are reviewed on the basis of the actual distribution of tasks. System access and integration details are clarified separately for the specific model.
A sound decision combines Mandat suitability, range of services, and law firm management. A meaningful criteria check before commissioning, which maps the actual monthly run and puts individual advantages into the overall context, is telling.
For pure bookkeeping mandates, this criteria check forms the appropriate fundamental decision. As soon as payroll and Bookkeeping are to be coordinated together, the reader's question leads to the combined payroll and financial accounting Mandat. For pure payroll mandates, the internal classification applies to Payroll for law firms.
BAS can be integrated into this division of tasks as a service provider for monthly financial accounting processing. On the part BAS for law firms and partners service levels and connection options are classified for the specific law firm situation.
Law firms gain capacity for professional review and client care when suitable Engagemente, a fitting initial scope and reliable work stages come together. The quality of the division of tasks arises from documented booking bases, clear queries and a defined return standard. The firm manages the Engagement, steers professional decisions and grants approvals. The background partner executes the agreed task package. This division of roles creates a robust basis for individual modules as well as for broader monthly processing. A sensible start often begins with a clearly defined Engagement or area of tasks. The results from the initial monthly runs subsequently show which scope suits the firm's structure in the long term.
Brasser Accounting Solutions GmbH is a specialised accounting service provider that supports companies with financial accounting, payroll accounting, and the structuring of modern digital accounting processes. The aim is a collaboration that is professionally sound, organisationally relieving, and reliably functional in everyday use.
Brasser Accounting Solutions GmbH is part of a corporate group with Quint GmbH Tax Consultancy & Auditing and the Swedish accounting and tax firm Service Place Årjäng AB.
