Lesson 7 of 33 · Free
Contents
- 1 T-Accounts & The General Ledger
- 1.1 From journal to ledger
- 1.2 Anatomy of a T-account
- 1.3 “Posting” — the journal-to-ledger transfer
- 1.4 Computing the balance
- 1.5 The general ledger vs. subsidiary ledgers
- 1.6 Full walkthrough: a freelancer’s first month
- 1.7 Lesson recap
- 1.8 Deepening the Concept
- 1.9 Indian Application & Regulatory Context
- 1.10 Worked Example (in Rupees)
- 1.11 Common Mistakes to Avoid
- 1.12 Practice Questions with Answers
- 1.13 Key Takeaways
- 1.14 Frequently Asked Questions
T-Accounts & The General Ledger
From journal to ledger. Learn to group transactions by account and compute closing balances the right way.
From journal to ledger
The journal is chronological — every transaction listed in the order it happened. But that’s not very useful when you want to answer “how much cash do we have right now?” or “how much do we owe Vendor X?” For that, you need to group transactions by account. That’s the ledger. And a T-account is the simplest way to visualise a ledger account.
Anatomy of a T-account
Every ledger account is shaped like a capital T:
- Account name across the top (e.g., “Cash A/c”, “Rent Expense A/c”).
- Debit side on the left. Every debit posted to this account from the journal goes here.
- Credit side on the right. Every credit posted to this account goes here.
- Balance at the end of the period = bigger side minus smaller side.
“Posting” — the journal-to-ledger transfer
Each line in a journal entry gets copied to its respective T-account. This step is called posting. Modern accounting software does it automatically the moment you save a journal entry, but understanding the mechanics matters.
Say you’ve recorded these three journal entries during May:
| Date | Entry | Dr. | Cr. |
|---|---|---|---|
| May 1 | Cash A/c Dr. / To Capital A/c | 50,000 | 50,000 |
| May 3 | Rent A/c Dr. / To Cash A/c | 8,000 | 8,000 |
| May 5 | Cash A/c Dr. / To Sales A/c | 12,000 | 12,000 |
The Cash T-account ends up looking like the diagram above. Cash is debited twice (May 1 and May 5) and credited once (May 3). Closing balance = ₹50,000 + ₹12,000 − ₹8,000 − ₹1,500 = ₹52,500.
Computing the balance
At month-end, you “balance off” each account:
- Sum the debit side.
- Sum the credit side.
- The difference is the closing balance, written on the smaller side as “Balance c/d” (carried down).
- Both sides will now total to the same number — write it under both columns and double-underline.
- On the first day of the next month, the closing balance becomes the opening balance (“Balance b/d”) on the side that originally had the bigger total.
The general ledger vs. subsidiary ledgers
The general ledger is the master collection of all T-accounts — one for every line item that will appear on your balance sheet and income statement.
Subsidiary ledgers break a single general-ledger account into customer-level or vendor-level detail. The most common ones:
- Accounts Receivable subsidiary ledger — one T-account per customer. The total of all customer balances must equal the AR control account in the general ledger.
- Accounts Payable subsidiary ledger — one T-account per vendor.
- Inventory subsidiary ledger — one per SKU.
Full walkthrough: a freelancer’s first month
Priya freelances. May transactions:
- May 1 — Invests ₹2,00,000 capital.
- May 4 — Buys a ₹80,000 laptop with cash.
- May 10 — Wins a project, invoices client for ₹60,000 (on credit).
- May 18 — Pays ₹5,000 for software.
- May 25 — Client pays the ₹60,000 invoice.
- May 31 — Pays ₹15,000 home-office rent.
After posting, here’s the cash account:
| Date | Detail | Debit | Credit |
|---|---|---|---|
| May 1 | Capital | 2,00,000 | — |
| May 4 | Laptop | — | 80,000 |
| May 18 | Software | — | 5,000 |
| May 25 | Client receipt | 60,000 | — |
| May 31 | Rent | — | 15,000 |
| Totals | 2,60,000 | 1,00,000 | |
| Balance c/d (debit balance) | 1,60,000 | ||
Lesson recap
- A T-account groups every debit and credit for one ledger account.
- Posting = copying journal lines into their T-accounts.
- Balance c/d goes on the smaller side; balance b/d carries forward to next period.
- The general ledger is the master; subsidiary ledgers add customer- and vendor-level detail.
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Deepening the Concept
The general ledger is the book that contains every ledger account in alphabetical or coded order, and the T-account is the visual short-hand we use to study a single ledger’s behaviour at a glance. The T-account gets its name from the literal T-shape: account name at the top, debits on the left arm, credits on the right arm, and a running balance struck at period-end. Every journal entry, after it is posted, finds its way into at least two T-accounts — one on the debit side, one on the credit side — and the sum of all left-side entries across all accounts equals the sum of all right-side entries, which is exactly what the trial balance later confirms. In modern Tally or SAP, the general ledger is a database table, but understanding the T-account remains essential because every audit query, scrutiny notice and exam problem asks you to analyse the movement in a single account — and the T-account is the cleanest format to do that.
Indian Application & Regulatory Context
In Indian regulatory practice, the general ledger is the primary book of account that the auditor inspects under Section 143 of the Companies Act 2013. ICAI’s Standard on Auditing 230 requires the auditor to obtain reasonable assurance that posting from journal to ledger is accurate, complete and unaltered. For GST, the Output Tax ledgers (CGST, SGST, IGST) must be reconcilable to GSTR-1 line-wise; for TDS, the TDS-payable ledgers must reconcile to Form 26Q. Most Indian accountants extract a ledger account in T-format from Tally to investigate any unusual movement — a one-off ₹2 crore debit to ‘Office Equipment’ in March, for instance, will demand explanation about whether it is a genuine purchase, a reclassification, or a year-end provision.
Worked Example (in Rupees)
Scenario: ABC Traders, Delhi, has three sales transactions during May 2026: ₹40,000 cash sale, ₹60,000 credit sale, and a ₹10,000 sales return on the credit sale. Show the T-account for Sales.
- Sales A/c — Cr ₹40,000 (cash sale), Cr ₹60,000 (credit sale).
- Sales Return A/c — Dr ₹10,000.
- If sales returns are netted into Sales: Sales A/c shows total Cr ₹1,00,000 and Dr ₹10,000.
- Balance: Cr ₹90,000 — the net revenue for May 2026.
Takeaway: The T-account makes the net revenue for the period instantly visible and lets the auditor trace each side back to the source vouchers.
Common Mistakes to Avoid
- Confusing the side of a sub-ledger: ‘Sundry Debtors’ is an asset and increases on Dr; ‘Sales’ is income and increases on Cr — beginners often swap them.
- Forgetting opening balances: a T-account without the opening balance gives a wrong period-end figure.
- Posting only one leg: a single-sided posting unbalances the trial balance; double-entry must always be respected.
- Not striking a period-end balance: without a ‘Bal c/d’ line, the T-account cannot be carried forward to the next period.
Practice Questions with Answers
Q1. Why is the T-account format useful when journal entries already exist in Tally?
Answer: Because the journal shows transactions in chronological order across many accounts, while the T-account isolates one account and shows every Dr and Cr that hit it over a period — making analysis, reconciliation and balance computation easy.
Q2. Where does the balance carried down (Bal c/d) sit on a T-account?
Answer: On the side with the smaller total — to make the two sides match. The Bal c/d becomes Bal b/d (brought down) on the opposite side at the start of the next period.
Q3. How does GST reconciliation use the general ledger?
Answer: The Output CGST/SGST/IGST ledgers in the general ledger are summed up and compared to GSTR-1 totals; any variance is investigated invoice-by-invoice using ledger references.
Q4. What is the relationship between the journal and the ledger?
Answer: The journal is the chronological book of original entry. Posting (Dr/Cr) from each journal entry into individual account ledgers produces the general ledger. The trial balance is then drawn from the ledgers.
Key Takeaways
- The general ledger is the master book containing every account; the T-account is its visual short-hand.
- Every journal posting affects at least two T-accounts — one debit, one credit.
- T-accounts let you isolate and analyse a single account over a period.
- Period-end balances (Bal c/d) carry into the next period as opening balances (Bal b/d).
- Auditors and GST officers routinely demand T-format ledger extracts during examination.
Frequently Asked Questions
Is the T-account still used in real-world accounting or just in textbooks?
Both. Software stores data in tabular form, but practitioners frequently extract individual ledgers in T-format to analyse movement and investigate variances.
How do sub-ledgers (debtors, creditors) connect to the general ledger?
Sub-ledgers contain party-wise detail; the totals of the sub-ledger equal the corresponding control account in the general ledger (Sundry Debtors / Sundry Creditors).
Can a T-account have more than two columns?
Some variations add date and folio columns for completeness, but the core remains: Dr on the left, Cr on the right.
How often should ledger balances be reviewed in a small Indian firm?
At minimum monthly, alongside the trial balance and bank reconciliation. Quarterly review is acceptable only for very low-volume ledgers.