What is the simplest way to use IF with multiple conditions?

Combine AND/OR in the logical test and write the formula as IF(AND(condition1,condition2),value_if_true,value_if_false) or IF(OR(condition1,condition2),value_if_true,value_if_false). If there are three or more result branches, switch to IFS.

When should I use IFS instead of nested IF?

It is suitable for multiple branches evaluated sequentially from top to bottom, such as grades or pricing tiers. It improves readability and maintainability, reducing the risk of errors.

Is there an easier method than IF for multiple-criteria lookups?

The XLOOKUP(1,(condition1)*(condition2),return_array) pattern is concise. If you need to return all matching rows, apply conditions with FILTER to return a dynamic array.

How can I avoid errors such as #VALUE!?

Wrap formulas with IFERROR/IFNA and check blank cells and data types first. You can also prevent input errors with tables and data validation.

How can I optimize slow calculations?

Use LET to assign repeated references to variables and reduce unnecessary nesting. Replacing logic with aggregation functions such as SUMIFS/COUNTIFS also reduces calculation workload.

CONTENTS

IF with Multiple Conditions: Everything You Need in One Guide (AND/OR/IFS with XLOOKUP/FILTER)

IF with multiple conditions is one of the most common challenges when combining AND/OR and branching based on text, numbers, and dates. This guide is organized as copy-and-paste formulas → principles → alternatives and optimization → troubleshooting, so even beginners can apply it immediately at work.

Quick Fix

=IF(AND(A2="Complete", B2>=90), "Pass", "Review")
=IF(OR(C2="Urgent", D2>1000000), "OK", "Pending")
=IFS(E2>=90,"A", E2>=80,"B", E2>=70,"C", TRUE,"D")
=IF(AND(F2="Domestic", G2>=50000), "Free Shipping", "Paid")
=IFERROR(IF(AND(H2<>"", I2<>""), IF(H2>I2,"Increase","Decrease"), ""), "")
=XLOOKUP(1, (Product=K2)*(Region=L2), Price)

Why Is It Confusing? (Concepts and Principles)

Logical Operations and TRUE/FALSE

Use the result (TRUE/FALSE) of AND/OR/NOT in IF(logical_test, value_if_true, value_if_false).

Nested IF vs. IFS vs. SWITCH

Nested IF: Readability declines when there are three or more outcomes.
IFS: Evaluates sequentially from top to bottom, making it useful for grade and range classifications.
SWITCH: Branches among multiple possible values for a single expression.

Practical Examples (Sample Data and Formulas)

Order ID	Region	Product	Quantity	Amount	Status	Score	Order Date
O-001	Domestic	A	3	45000	Complete	92	2025-08-01
O-002	International	B	1	20000	In Progress	81	2025-08-03
O-003	Domestic	B	6	120000	Complete	76	2025-09-10
O-004	Domestic	C	2	35000	On Hold	65	2025-09-21

Domestic + Amount ≥ 50,000 ⇒ Free Shipping

=IF(AND(B2="Domestic", E2>=50000), "Free Shipping", "Paid")

Urgent (OR) or High-Value Order ⇒ Priority Processing

=IF(OR(G2="Urgent", E2>1000000), "Priority", "Standard")

Grade by Score (IFS Recommended)

=IFS(F2>=90,"A", F2>=80,"B", F2>=70,"C", TRUE,"D")

Date Branching (Ship Monday for Weekend Orders)

=IF(OR(WEEKDAY(H2,2)=6, WEEKDAY(H2,2)=7), "Ship Monday", "Same or Next Day")

Multiple-Criteria Lookup (XLOOKUP)

=XLOOKUP(1, (tblPrice[Product]=C2)*(tblPrice[Region]=B2), tblPrice[Price])

Multiple Results (FILTER)

=FILTER(A2:H5, B2:B5="Domestic", "None")

Alternatives, Optimization, and Notes

Use COUNTIFS/SUMIFS to reduce IF formulas and improve readability and speed.
Use LET to assign repeated references and calculations to variables.
When possible, replace multiple-criteria lookups with XLOOKUP/FILTER.

Troubleshooting

Issue	Cause	Solution
#VALUE!/#N/A	Blank cells or mixed data types	Wrap with IFERROR/IFNA and standardize data types.
Too many parentheses	Overuse of nested IF formulas	Replace with IFS/SWITCH/LET.
Slow calculation	Duplicate calculations	Eliminate duplicates with LET and use table references.
Cannot return multiple rows	IF returns a single value	Use FILTER.
Left/right lookup limitations	VLOOKUP limitations	Switch to XLOOKUP.

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피벗테이블이 ‘개수’로 나올 때 — Quick Fix(90초)

Complete Guide to IF with Multiple Conditions: AND, OR, IFS, XLOOKUP, and FILTER Examples