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Прозрения, уроци и актуализации за счетоводството в обикновен текст от екипа на Beancount.io.

Activity-Based Costing and TDABC: A Practical Guide to Customer and SKU Profitability

Activity-Based Costing replaces volume-based overhead allocation with cause-and-effect cost drivers, revealing which customers and SKUs actually pay and which silently lose money. This guide explains how ABC and its modern successor TDABC work, the five implementation steps, and why roughly 20% of customers and 30–40% of SKUs often destroy value.

ABLE Accounts in 2026: How Section 529A Lets People With Disabilities Save $19,000 a Year Tax-Free Without Losing SSI or Medicaid

A 2026 guide to ABLE accounts under IRC Section 529A — the new age-46 eligibility cutoff that makes 6 million more Americans (including 1 million veterans) eligible, the $19,000 annual contribution cap, the $100,000 SSI shelter, the unlimited Medicaid shelter, qualified disability expenses, the ABLE to Work multiplier up to $34,650, and how to avoid Medicaid clawback at death.

WISP Compliance: Why Every Tax Pro Needs a Written Information Security Plan in 2026

A practical guide to building a Written Information Security Plan that satisfies the FTC Safeguards Rule and IRS Publication 5708 — covering the nine required elements, technical controls like MFA and encryption, penalty exposure up to $46,517 per violation per day, and a six-week roadmap for tax preparers, CPAs, and bookkeepers.

The 2026 WISP Playbook for Tax Pros and Bookkeepers: Building an FTC Safeguards Rule-Compliant Data Security Program Without a CISO

A 2026 guide for solo tax preparers and small bookkeeping firms to build a Written Information Security Plan that satisfies the FTC Safeguards Rule's nine elements, the IRS PTIN attestation, and the 30-day breach notification requirement — using IRS Publication 5708 as the scaffold and a 90-day rollout.

Subpart F Income and Controlled Foreign Corporations: Why U.S. Owners Get Taxed on Foreign Profits Before the Cash Comes Home

Subpart F forces U.S. shareholders of a controlled foreign corporation to recognize foreign profits as current-year income, even when no cash is distributed. This guide covers the 10 percent threshold, the four triggering income categories, Section 958 constructive ownership traps, Form 5471 penalties, and how the 2026 OBBBA rewrite (NCTI, restored 958(b)(4), 40 percent Section 250 deduction) reshapes the rules.

State Corporate Income Tax Apportionment in 2026: How Single Sales Factor and Market-Based Sourcing Reshape SaaS Tax Bills

A guide to state corporate income tax apportionment in 2026 — why 34 of 44 corporate-tax states now use single sales factor, how market-based sourcing rules in California, Kansas, and Arkansas shift SaaS and service company tax bills toward customer location, and five strategies to manage the exposure.